I'm pretty sure it's 24 or higher
Farfetch'd is a Pokemon that does not evolve.
The best place to evolve a Pokemon in Pokemon Heart Gold is at Mt. Silver.
Farfetch'd does not evolve in Pokemon HeartGold. Sorry! :)
Heart Scale does not evolve any Pokemon. You trade it to a maniac who will make Pokemon remember moves. In black and white, the maniac is in Mistralton city.
hitmonchan cant evolve
Wooper will evolve at Level 20.
no, you have to trade them.
Magmius or honchkrow
21
evolve gastly.
happiny
eevee